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Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.
Exponent Prime Factor Digits Year
2639596079527919215910 ~2005
2639690639527938127910 ~2005
26398549571583912974311 ~2006
26401018372112081469711 ~2006
2640157463528031492710 ~2005
264022648311088951228712 ~2008
26402794131584167647911 ~2006
26404414211584264852711 ~2006
2640451739528090347910 ~2005
26405132333696718526311 ~2007
2640550331528110066310 ~2005
2640747359528149471910 ~2005
2640751439528150287910 ~2005
26407741611584464496711 ~2006
2640873359528174671910 ~2005
26409978112112798248911 ~2006
26410576211584634572711 ~2006
26410769872112861589711 ~2006
2641248971528249794310 ~2005
2641445699528289139910 ~2005
2641497191528299438310 ~2005
264155948914264421240712 ~2008
26416538998453292476911 ~2008
2641720799528344159910 ~2005
2641833899528366779910 ~2005
Exponent Prime Factor Digits Year
26418560931585113655911 ~2006
2641907759528381551910 ~2005
26419637297925891187111 ~2007
264198241915323498030312 ~2008
2642036471528407294310 ~2005
2642133491528426698310 ~2005
26422199812113775984911 ~2006
2642221091528444218310 ~2005
26422826933699195770311 ~2007
2642369699528473939910 ~2005
2642370011528474002310 ~2005
26423718611585423116711 ~2006
2642389031528477806310 ~2005
2642509091528501818310 ~2005
2642658983528531796710 ~2005
2642796503528559300710 ~2005
264297963119029453343312 ~2008
26429934771585796086311 ~2006
2643029723528605944710 ~2005
2643062771528612554310 ~2005
2643482591528696518310 ~2005
2643489143528697828710 ~2005
2643560999528712199910 ~2005
2643713519528742703910 ~2005
2643895043528779008710 ~2005
Exponent Prime Factor Digits Year
264390262317449757311912 ~2008
2643972491528794498310 ~2005
26439765011586385900711 ~2006
26441209331586472559911 ~2006
26441593131586495587911 ~2006
2644292951528858590310 ~2005
26443140072644314007111 ~2006
2644380191528876038310 ~2005
2644462811528892562310 ~2005
2644471463528894292710 ~2005
2644568939528913787910 ~2005
26446397212115711776911 ~2006
2644740251528948050310 ~2005
2644857851528971570310 ~2005
2644998971528999794310 ~2005
2645102783529020556710 ~2005
2645153243529030648710 ~2005
2645405531529081106310 ~2005
26454587296349100949711 ~2007
2645633951529126790310 ~2005
2645634539529126907910 ~2005
2645658131529131626310 ~2005
2645713571529142714310 ~2005
2645868479529173695910 ~2005
26460237412116818992911 ~2006
Exponent Prime Factor Digits Year
2646024971529204994310 ~2005
2646102083529220416710 ~2005
2646168971529233794310 ~2005
26461833497938550047111 ~2007
26461843131587710587911 ~2006
26463571012117085680911 ~2006
2646514319529302863910 ~2005
2646531059529306211910 ~2005
2646639179529327835910 ~2005
2646688283529337656710 ~2005
2646701951529340390310 ~2005
26468165692117453255311 ~2006
26468187011588091220711 ~2006
2646821291529364258310 ~2005
26468365811588101948711 ~2006
2646859811529371962310 ~2005
2647112399529422479910 ~2005
2647183043529436608710 ~2005
26471991712117759336911 ~2006
2647215731529443146310 ~2005
2647227899529445579910 ~2005
26472867371588372042311 ~2006
2647607159529521431910 ~2005
2647654631529530926310 ~2005
2647676819529535363910 ~2005
3946
GIMPS The Prime Pages FactorDb.com
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25-07-08